Pi
Also known as: Passionate Blueberry , Winter Sea , Academic Blue , Madison
Pi is a rich, gentle blue that reads as calm and trustworthy. It earns its place in SaaS products and finance apps. Its complement lands in brown territory, which makes for striking two-color pairings. Accessibility-wise, it clears AA for text on white at 10.34:1.
Reference
Pi color codes
- HEX
- #314159
- RGB
- rgb(49, 65, 89)
- RGBA
- rgba(49, 65, 89, 1)
- HSL
- hsl(216, 29%, 27%)
- HSV
- hsv(216, 45%, 35%)
- CMYK
- cmyk(45%, 27%, 0%, 65%)
- LAB
- lab(27.0 -1.2 -16.6)
- OKLCH
- oklch(37.2% 0.046 258.3)
Analysis
Color intelligence
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Gamut
The full range of colors a device or space can show. sRGB is the common screen gamut; Display P3 is wider. A color outside a gamut cannot be shown accurately there and must be mapped inward.Full glossary entry →Displays accurately on every screen and translates well to print.
Temperature
Undertone
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cool
Nearest standard colors
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →- CSS: darkslateblue #483D8B · ΔE 10.8
- RAL 5003: Sapphire blue #2A3756 · ΔE 4.7 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck. Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Pi works
- Web & UI: Use it directly for text on light surfaces; it clears AA contrast without adjustment.
- Interiors: Use it where you want the eye to land: a front door, built-ins, or one bold wall.
- Fashion: One garment in this color carries an outfit; two starts to compete.
- Branding: The safest brand-primary family there is; differentiate with an unexpected accent.
- Web & UI: Use it decoratively for dividers, chart series, and illustration accents, and let neutrals carry the type.
- Branding: Best in a brand's supporting palette: packaging interiors, patterns, campaign accents.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Pi
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →Tints (lighter)
Shades (darker)
Harmonies
Color harmonies
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →Palettes built from Pi by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Accessibility
Contrast & accessibility
Aa on white
contrast 10.34:1
AA pass AAA pass AA large pass
Aa on black
contrast 2.03:1
AA fail AAA fail AA large fail
Best text color on a Pi background: #ffffff
Palettes
Palettes featuring Pi
Pi with its complement
Soft neighbors of Pi
Pi triad
Explore
Similar colors
- Nautilus #273C5A · ΔE 2.8
- Silent Sea #3A4A63 · ΔE 3.0
- Bonne Nuit #3A4866 · ΔE 3.7
- Naval Blue #384B6B · ΔE 4.2
- Lava Stone #3C4151 · ΔE 4.6
- Bluedgeons #324C64 · ΔE 4.9
Looking for maximum contrast instead? The complement of Pi is closest to Madras .
FAQ
Pi FAQs
What color is Pi?
Pi is a dark blue with the hex code #314159. In HSL terms it has a hue of 216°, 29% saturation, and 27% lightness.
What is the hex code for Pi?
The hex code for Pi is #314159. In RGB it's rgb(49, 65, 89), and in CMYK it's cmyk(45%, 27%, 0%, 65%).
What colors go well with Pi?
Pi pairs naturally with brown tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
Planning around this color? See everything that goes with Pi : 10 computed pairings with palettes.
Got a photo with a color like this? Identify it with the analyzer . Free, private, on your device.